22116549 has 16 divisors (see below), whose sum is σ = 36294272. Its totient is φ = 11665728.

The previous prime is 22116539. The next prime is 22116569. The reversal of 22116549 is 94561122.

It is not a de Polignac number, because 22116549 - 2⁴ = 22116533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22116539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40234 + ... + 40779.

It is an arithmetic number, because the mean of its divisors is an integer number (2268392).

Almost surely, 2^22116549 is an apocalyptic number.

It is an amenable number.

22116549 is a deficient number, since it is larger than the sum of its proper divisors (14177723).

22116549 is a wasteful number, since it uses less digits than its factorization.

22116549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81036.

The product of its digits is 4320, while the sum is 30.

The square root of 22116549 is about 4702.8235135927. The cubic root of 22116549 is about 280.6978722726.

The spelling of 22116549 in words is "twenty-two million, one hundred sixteen thousand, five hundred forty-nine".